o
    ^"<f–
  ã                   @   sJ   d dl mZmZ d dlmZ d dlmZ G dd„ deƒZG dd„ dƒZdS )	é    )ÚCoordTransformÚSpatialReference©ÚSerializerDoesNotExist)Ú
Serializerc                       sP   e Zd ZdZ‡ fdd„Zdd„ Zdd„ Z‡ fdd	„Zd
d„ Z‡ fdd„Z	‡  Z
S )r   z<
    Convert a queryset to GeoJSON, http://geojson.org/
    c                    sl   t ƒ  ¡  | j dd ¡| _| j dd¡| _| jd ur0| jd ur2| j| jvr4g | j¢| j‘| _d S d S d S d S )NÚgeometry_fieldÚsridiæ  )ÚsuperÚ_init_optionsÚjson_kwargsÚpopr   r   Úselected_fields©Úself©Ú	__class__© ú]/var/www/html/kck/venv/lib/python3.10/site-packages/django/contrib/gis/serializers/geojson.pyr
   
   s   
þzSerializer._init_optionsc                 C   s$   |   ¡  i | _| j d| j ¡ d S )Nzg{"type": "FeatureCollection", "crs": {"type": "name", "properties": {"name": "EPSG:%d"}}, "features": [)r
   Ú_ctsÚstreamÚwriter   r   r   r   r   Ústart_serialization   s   ÿÿzSerializer.start_serializationc                 C   s   | j  d¡ d S )Nz]})r   r   r   r   r   r   Úend_serialization   s   zSerializer.end_serializationc                    sJ   t ƒ  |¡ d | _| jd u r!|jjD ]}t|dƒr |j| _ d S qd S d S )NÚ	geom_type)r	   Ústart_objectÚ	_geometryr   Ú_metaÚfieldsÚhasattrÚname©r   ÚobjÚfieldr   r   r   r      s   

þýzSerializer.start_objectc                 C   s¼   d| j dœ}| jd u sd| jv r!d|d vr!|jj |¡|d d< | jrX| jj| jkrN| jj| jvrCt| jƒ}t	| jj
|ƒ| j| jj< | j | j| jj ¡ t| jjƒ|d< |S d |d< |S )NÚFeature)ÚtypeÚ
propertiesÚpkr%   Úgeometry)Ú_currentr   r   r&   Úvalue_to_stringr   r   r   r   r   ÚsrsÚ	transformÚevalÚgeojson)r   r!   Údatar*   r   r   r   Úget_dump_object&   s    þ
ÿzSerializer.get_dump_objectc                    s.   |j | jkr| |¡| _d S tƒ  ||¡ d S )N)r   r   Úvalue_from_objectr   r	   Úhandle_fieldr    r   r   r   r1   :   s   zSerializer.handle_field)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r
   r   r   r   r/   r1   Ú__classcell__r   r   r   r   r      s    
r   c                   @   s   e Zd Zdd„ ZdS )ÚDeserializerc                 O   s   t dƒ‚)Nz*geojson is a serialization-only serializerr   )r   ÚargsÚkwargsr   r   r   Ú__init__B   s   zDeserializer.__init__N)r2   r3   r4   r:   r   r   r   r   r7   A   s    r7   N)	Údjango.contrib.gis.gdalr   r   Údjango.core.serializers.baser   Údjango.core.serializers.jsonr   ÚJSONSerializerr7   r   r   r   r   Ú<module>   s
    ;